Hi, About an hour ago I got back from an unusually intense (for me) 40 mile bike ride. It was 93 degrees out today and I was sweating a LOT. I drank water at 0, 10, and 30 miles. When I got home, I felt really tired (sleep tired, not physically exhausted tired) and lightheaded (in a weird way). Usually I can bike this much without feeling too tired but today was different. After I got back home, I drank some water with sea salt and baking soda in it, had several pieces of toast, a glass of chocolate milk, a glass of lime-aid (like lemonade but with limes...), and a banana. I felt a little better immediately after drinking the water with salt and baking soda in it, but I'm still a little worried. I took a cold shower and have been inside lying down on the couch since I got back. Anyways, I'm about to eat dinner and I'm wondering if any of you guys have experienced this before and if I should make anything in particular or if you think I'm overreacting.